Driving device of seedling tray compression molding die table and seedling tray compression molding die table

Abstract

The utility model provides a driving device of a seedling tray compression molding platform. The driving device comprises a crankcase, a crankshaft, a crankshaft connecting rod, a motor and a speed reducer, the crankshaft is arranged in the crankshaft box, the crankshaft connecting rod is sleeved on a connecting rod journal of the crankshaft through an upper end shaft sleeve, and a lower end extension rod is connected with a mold pressing plate of the compression molding mold table; and the motor is connected with one end of the crankshaft through the speed reducer. The utility model further provides a seedling tray compression molding die table which comprises a frame body, a die pressing plate, a crankcase, a crankshaft, a crankshaft connecting rod, a motor and a speed reducer. According to the utility model, the motor and the crankshaft are used for driving, so that the reciprocating motion speed of the die pressing plate is greatly improved, the compression molding speed is improved from the original 35 pieces per minute to the current speed of not less than 47 pieces per minute, and the requirement of higher compression molding efficiency can be met. According to the crankshaft connecting rod structure, the length can be adjusted, the movement range of the die pressing plate can be changed, the motor can be arranged upwards or downwards according to actual requirements, and equipment is not limited by space.

Description

Technical Field

[0001] The utility model relates to a plastic compression die table for seedling trays, in particular to a driving device for a plastic compression die table for seedling trays and the plastic compression die table for seedling trays. Background Art

[0002] The seedling tray is an essential component of a rice transplanter, and its main function is to realize the seedling raising process of rice seedlings. The seedling tray is made of polyvinyl chloride sheet, polypropylene sheet, or polyester sheet through plastic compression by a seedling tray plastic compression machine. Features: easy to carry, convenient for seedling lifting, and convenient for storage. The seedling tray plastic compression machine is used for plastic compression of disposable plastic seedling trays. Among them, a mold pressing plate in the plastic compression die table is driven to move up and down by a driving device. When the raw material sheet of the seedling tray is transported below the mold pressing plate, the mold pressing plate moves downward under the action of the driving device to compress and form the raw material sheet into a seedling tray. The commonly used driving device for the existing plastic compression die table is driven by a hydraulic cylinder or a pneumatic cylinder. However, the reciprocating movement speed of the hydraulic cylinder or the pneumatic cylinder is relatively low, and it cannot meet the requirements of higher plastic compression efficiency. Summary of the Invention

[0003] In order to solve the above technical problems, the utility model provides a driving device for a plastic compression die table for seedling trays, which includes a crankcase, a crankshaft, a crankshaft connecting rod, a motor, and a reducer; the crankcase is fixed on a frame body; the crankshaft is arranged in the crankcase, and both ends of the main journal of the crankshaft are arranged in the shaft holes on both sides of the crankcase; the upper end of the crankshaft connecting rod is provided with a bushing, and the lower end is provided with an extension rod. The crankshaft connecting rod is sleeved on the connecting rod journal of the crankshaft through the upper bushing, and the lower extension rod is connected to the mold pressing plate of the plastic compression die table; the motor is connected to one end of the crankshaft through the reducer.

[0004] The torque output by the motor drives the crankshaft to rotate through the reducer, and the crankshaft drives the mold pressing plate of the plastic compression die table to reciprocate up and down through the crankshaft connecting rod.

[0005] Further, a threaded connection hole is provided at the lower end of the crankshaft connecting rod, an external thread is provided at the upper part of the extension rod, and the upper part of the extension rod is threadedly connected to the threaded connection hole at the lower end of the crankshaft connecting rod; a ball head is provided at the lower end of the extension rod, and a ball head connection seat is provided on the mold pressing plate. The extension rod and the ball head connection seat are connected through the ball head.

[0006] By screwing the extension rod to adjust the connection depth between the extension rod and the crankshaft connecting rod, changing the extended length of the extension rod, and further adjusting the height of the mold pressing plate of the plastic compression die table.

[0007] Further, a through pin shaft hole is provided at the lower part of the crankshaft connecting rod. The pin shaft hole is vertically intersected with the threaded connection hole and partially communicated inside. Two locking pins are arranged in the pin shaft hole. Threaded surfaces meshing with the external thread of the extension rod are arranged at opposite ends of the two locking pins. The two locking pins are meshed and clamped with the external thread of the extension rod in the pin shaft hole. A threaded hole is provided on the locking pin, and the locking screw is inserted from one locking pin and screwed and fixed with the other locking pin.

[0008] After the extension rod is threadedly connected with the threaded connection hole at the lower end of the crankshaft connecting rod, the two locking pins are respectively inserted from both ends of the pin shaft hole. After the two locking pins are meshed and clamped with the external thread of the extension rod in the pin shaft hole, the locking screw is inserted from one locking pin and screwed and tightened with the other locking pin to fix the position of the extension rod and prevent the extension rod from loosening during the operation of the crankshaft connecting rod.

[0009] Further, a jacking screw hole penetrating to the inside is provided on the side wall of the pin shaft hole, and the jacking screw is screwed into the jacking screw hole and jacks up the locking pin.

[0010] After the locking pin is fixed, the jacking screw is screwed into the jacking screw hole and jacks up the locking pin to prevent the locking pin from loosening during the operation of the crankshaft connecting rod.

[0011] The utility model also provides a seedling tray compression molding die table, which includes a frame body, a die pressing plate, a crankshaft case, a crankshaft, a crankshaft connecting rod, a motor, and a reducer. A sliding rod connected up and down is arranged inside the frame body. The die pressing plate is arranged inside the frame body. A sliding sleeve is provided on the die pressing plate. The die pressing plate is sleeved on the sliding rod through the sliding sleeve and slides up and down along the sliding rod. The crankshaft case is fixed on the frame body. The crankshaft is arranged inside the crankshaft case, and both ends of the main journal of the crankshaft are arranged in the shaft holes on both sides of the crankshaft case. The upper end of the crankshaft connecting rod is provided with a shaft sleeve, and the lower end is provided with an extension rod. The crankshaft connecting rod is sleeved on the connecting rod journal of the crankshaft through the upper end shaft sleeve, and the lower end extension rod is connected with the die pressing plate. The motor is connected with one end of the crankshaft through the reducer.

[0012] The torque output by the motor drives the crankshaft to rotate through the reducer. The crankshaft drives the crankshaft connecting rod to make a reciprocating motion, and further drives the die pressing plate to reciprocate up and down along the sliding rod. A compression molding die is provided on the die pressing plate. The transmission equipment transports the seedling tray raw material sheet to the die pressing plate. The die pressing plate moves towards the seedling tray raw material sheet to perform compression molding on the seedling tray raw material sheet. The die pressing plate moves in the opposite direction of the seedling tray raw material sheet to complete demolding.

[0013] The crankshaft case, the motor, and the reducer can be set to be upper-mounted or lower-mounted according to the compression molding requirements of the compression molding die table. The upper-mounted motor drives the die pressing plate to perform downward compression molding, and the lower-mounted motor drives the die pressing plate to perform upward compression molding.

[0014] The utility model also provides a seedling tray compression molding die table, which comprises a frame body, a first die pressing plate, a second die pressing plate, a crankcase, a crankshaft, a crankshaft connecting rod, a motor, and a speed reducer; a sliding rod connected up and down is arranged inside the frame body; the first die pressing plate and the second die pressing plate are arranged in parallel inside the frame body; sliding sleeves are respectively arranged on the first die pressing plate and the second die pressing plate, and the first die pressing plate and the second die pressing plate are sleeved on the sliding rod through the sliding sleeves and slide up and down along the sliding rod; the crankcase is fixed on the frame body; the crankshaft is arranged inside the crankcase, and two ends of the main journal of the crankshaft are arranged in the shaft holes on both sides of the crankcase; a shaft sleeve is arranged at the upper end of the crankshaft connecting rod, and an extension rod is arranged at the lower end. The crankshaft connecting rod is sleeved on the connecting rod journal of the crankshaft through the shaft sleeve at the upper end, and the extension rod at the lower end is connected with the first die pressing plate; the motor is connected with one end of the crankshaft through the speed reducer; the first die pressing plate is fixedly connected with a main transmission rod, the transmission rod passes through a sliding hole on the second die pressing plate, and the free end is hinged with one end of a lever through a linkage rod. The other end of the lever is hinged with one end of a driven rod, and the other end of the driven rod is hinged with the second die pressing plate; the middle part of the lever is hinged with a supporting part fixed on the frame body.

[0015] The motor output torque drives the crankshaft to rotate through the speed reducer, the crankshaft drives the crankshaft connecting rod to do reciprocating motion, and further drives the first die pressing plate to reciprocate up and down along the sliding rod. When the first die pressing plate moves towards the second die pressing plate, the first die pressing plate transmits the torque to the second die pressing plate through the main transmission rod, the linkage rod, the lever and the driven rod, so that the second die pressing plate synchronously moves towards the first die pressing plate to complete mold closing. On the contrary, when the first die pressing plate moves away from the second die pressing plate, the second die pressing plate synchronously moves away from the first die pressing plate to complete demolding.

[0016] The crankcase, the motor and the speed reducer can be arranged above or below according to the compression molding requirements of the compression molding die table. If the motor is arranged above, the first die pressing plate is arranged above the second die pressing plate; if the motor is arranged below, the first die pressing plate is arranged below the second die pressing plate.

[0017] The utility model also provides a seedling tray compression molding die table, which comprises a frame body, a first die pressing plate, a second die pressing plate, a first crankshaft box, a second crankshaft box, a first motor, a first speed reducer, a second motor, and a second speed reducer; a vertically connected sliding rod is arranged inside the frame body; the first die pressing plate and the second die pressing plate are arranged in parallel inside the frame body; sliding sleeves are respectively arranged on the first die pressing plate and the second die pressing plate, and the first die pressing plate and the second die pressing plate are sleeved on the sliding rod through the sliding sleeves and slide up and down along the sliding rod; the first crankshaft box is fixed on the upper part of the frame body, and the second crankshaft box is fixed on the lower part of the frame body; the first crankshaft box and the second crankshaft box have the same structure and opposite directions, a crankshaft is arranged inside the crankshaft box, and both ends of the main journal of the crankshaft are arranged in the shaft holes on both sides of the crankshaft box; the crankshaft is connected with a crankshaft connecting rod, one end of the crankshaft connecting rod is provided with a bushing, and the other end is provided with an extension rod. The crankshaft connecting rod is sleeved on the connecting rod journal of the crankshaft through the bushing. The extension rod in the first crankshaft box is connected with the first die pressing plate, and the extension rod in the second crankshaft box is connected with the second die pressing plate; the first motor is connected with one end of the crankshaft in the first crankshaft box through the first speed reducer, and the second motor is connected with one end of the crankshaft in the second crankshaft box through the second speed reducer.

[0018] The torque output by the first motor drives the crankshaft in the first crankshaft box to rotate through the first speed reducer, and drives the first die pressing plate to reciprocate up and down along the sliding rod through the crankshaft connecting rod; the torque output by the second motor drives the crankshaft in the second crankshaft box to rotate through the second speed reducer, and drives the second die pressing plate to reciprocate up and down along the sliding rod through the crankshaft connecting rod; the first motor and the second motor output torque synchronously, so that the first die pressing plate and the second die pressing plate move synchronously towards each other or in the opposite direction. When the first die pressing plate and the second die pressing plate move towards each other, the mold closing is completed; when the first die pressing plate and the second die pressing plate move in the opposite direction, the demolding is completed.

[0019] In the seedling tray compression molding die table provided by the utility model, a threaded connection hole is arranged at the lower end of the crankshaft connecting rod, an external thread is arranged at the upper part of the extension rod, and the upper part of the extension rod is threadedly connected with the threaded connection hole at the lower end of the crankshaft connecting rod; a ball head is arranged at the lower end of the extension rod, a ball head connection seat is arranged on the die pressing plate, and the extension rod is connected with the ball head connection seat through the ball head. By screwing the extension rod, the connection depth between the extension rod and the crankshaft connecting rod is adjusted, the extended length of the extension rod is changed, and further the height of the die pressing plate of the compression molding die table is adjusted.

[0020] The lower part of the described crankshaft connecting rod is provided with a through pin shaft hole, which is vertically intersecting with the threaded connection hole and partially communicated inside; two locking pins are arranged in the pin shaft hole, and threaded curved surfaces meshing with the external thread of the extension rod are arranged at the opposite ends of the two locking pins; the two locking pins are meshed and clamped with the external thread of the extension rod in the pin shaft hole; threaded holes are arranged on the locking pins, and the locking screw is inserted from one locking pin and screwed and fixed with the other locking pin. After the extension rod is threadedly connected with the threaded connection hole at the lower end of the crankshaft connecting rod, the two locking pins are respectively inserted from both ends of the pin shaft hole. After the two locking pins are meshed and clamped with the external thread of the extension rod in the pin shaft hole, the locking screw is inserted from one locking pin and screwed and tightened with the other locking pin to fix the position of the extension rod and prevent the extension rod from loosening during the operation of the crankshaft connecting rod.

[0021] A jacking screw hole penetrating to the inside is arranged on the side wall of the described pin shaft hole, and the jacking screw is screwed into the jacking screw hole to jack and lock the locking pin. After the locking pin is fixed, the jacking screw is screwed into the jacking screw hole to jack and lock the locking pin to prevent the locking pin from loosening during the operation of the crankshaft connecting rod.

[0022] The beneficial effects of the present utility model:

[0023] The present utility model does not adopt the traditional hydraulic cylinder or pneumatic cylinder drive, but uses a motor and a crankshaft drive, so that the reciprocating movement rate of the die pressing plate is greatly improved, from the original compression molding speed of 35 sheets per minute to the current speed of not less than 47 sheets per minute, which can meet the requirements of higher compression molding efficiency. And the structure of the crankshaft connecting rod of the present utility model can adjust the length, more conveniently adjust the distance between the crankshaft and the die pressing plate, and change the movement range of the die pressing plate. The present utility model can also change the upper or lower position of the motor according to actual needs, so that the equipment is not restricted by space. Description of the drawings

[0024] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present utility model;

[0025] Figure 2 It is a schematic structural diagram of the crankshaft and the crankshaft connecting rod of the present utility model;

[0026] Figure 3 It is a schematic structural diagram of the crankshaft connecting rod of the present utility model;

[0027] Figure 4 It is a schematic structural diagram of Embodiment 2 of the present utility model;

[0028] Figure 5 It is a schematic partial structural diagram of Embodiment 2 of the present utility model;

[0029] Figure 6 It is a schematic structural diagram of Embodiment 3 of the present utility model;

[0030] Figure 7 Schematic diagram of the structure of Embodiment 4 of the present utility model;

[0031] Figure 8 Schematic diagram of the structure of Embodiment 5 of the present utility model;

[0032] Figure 9 Schematic diagram of the structure of Embodiment 5 of the present utility model;

[0033] Figure 10 Schematic diagram of the structure of Embodiment 6 of the present utility model;

[0034] Figure 11 Schematic diagram of the structure of Embodiment 7 of the present utility model;

[0035] 1. Crankcase 2. Crankshaft 3. Crankshaft connecting rod 4. Motor 5. Reducer 6. Frame body 7. Bush 8. Extension rod 9. Mold pressing plate 10. Threaded connection hole 11. Ball head connection seat 12. Pin shaft hole 13. Locking pin 14. Threaded curved surface 15. Threaded hole 16. Locking screw rod 17. Tightening screw hole 18. Tightening screw rod 19. Slide rod 20. Slide sleeve 21. First mold pressing plate 22. Second mold pressing plate 23. Main transmission rod 24. Slide hole 25. Linking rod 26. Lever 27. Driven rod 28. First crankcase 29. Second crankcase 30. First motor 31. First reducer 32. Second motor 33. Second reducer. Specific embodiments

[0036] Embodiment 1

[0037] As Figure 1 shown, this embodiment provides a driving device for a seedling tray compression molding die table, including a crankcase 1, a crankshaft 2, a crankshaft connecting rod 3, a motor 4, and a reducer 5; the crankcase 1 is fixed on a frame body 6; the crankshaft 2 is arranged in the crankcase 1, and both ends of the main journal of the crankshaft 2 are arranged in the shaft holes on both sides of the crankcase 1; the upper end of the crankshaft connecting rod 3 is provided with a bush 7, and the lower end is provided with an extension rod 8. The crankshaft connecting rod 3 is sleeved on the connecting rod journal of the crankshaft 2 through the upper bush 7, and the lower extension rod 8 is connected to the mold pressing plate 9 of the compression molding die table; the motor 4 is connected to one end of the crankshaft 2 through the reducer 5.

[0038] The motor 4 is a servo motor, which can accurately control the output torque, speed, position, etc.; the output torque of the motor 4 drives the crankshaft 2 to rotate through the deceleration and torque increase of the reducer 5, and the crankshaft 2 drives the mold pressing plate 9 of the compression molding die table to reciprocate up and down through the crankshaft connecting rod 3.

[0039] Embodiment 2

[0040] As Figures 2-5As shown in the figure, this embodiment provides a driving device for a seedling tray compression molding table. On the basis of Embodiment 1, a threaded connection hole 10 is provided at the lower end of the crankshaft connecting rod 3, and an external thread is provided on the upper part of the extension rod 8. The upper part of the extension rod 8 is threadedly connected to the threaded connection hole 10 at the lower end of the crankshaft connecting rod 3; a ball head is provided at the lower end of the extension rod 8, and a ball head connection seat 11 is provided on the mold pressing plate 9. The extension rod 8 is connected to the ball head connection seat 11 through the ball head. When the device operates, the rotation of the crankshaft 2 will cause the crankshaft connecting rod 3 to have a certain inclination angle. The advantage of the ball head connection is that the ball head connection can enable the crankshaft connecting rod 3 to have a certain inclination space and will not cause impact or damage to the connection point.

[0041] By screwing the extension rod 8, the connection depth between the extension rod 8 and the crankshaft connecting rod 3 is adjusted, the extended length of the extension rod 8 is changed, and thus the height of the mold pressing plate 9 is adjusted.

[0042] A through pin shaft hole 12 is provided in the lower part of the crankshaft connecting rod 3. The pin shaft hole 12 is vertically intersected with the threaded connection hole 10 and partially communicated inside; two locking pins 13 are provided in the pin shaft hole 12, and threaded curved surfaces 14 meshing with the external thread of the extension rod 8 are provided at the opposite ends of the two locking pins 13; the two locking pins 13 are meshed and clamped with the external thread of the extension rod 8 in the pin shaft hole 12; a threaded hole 15 is provided on the locking pin 13, and the locking screw 16 is inserted from one locking pin 13 and screwed and fixed with the other locking pin 13.

[0043] After the extension rod 8 is threadedly connected to the threaded connection hole 10 at the lower end of the crankshaft connecting rod 3, the two locking pins 13 are respectively inserted from both ends of the pin shaft hole 12. After the two locking pins 13 are meshed and clamped with the external thread of the extension rod 8 in the pin shaft hole 12, the locking screw 16 is inserted from one locking pin 13 and screwed and tightened with the other locking pin 13 to fix the position of the extension rod 8 and prevent the extension rod 8 from loosening during the operation of the crankshaft connecting rod 3.

[0044] Two through tightening screw holes 17 are provided on the side wall of the pin shaft hole 12, and the tightening screw 18 is screwed into the tightening screw hole 17 to tightly press the locking pin 13 to prevent the locking pin 13 from loosening during the operation of the crankshaft connecting rod 3.

[0045] Embodiment 3

[0046] As Figure 6As shown in the figure: This embodiment provides a plastic compression die table for seedling trays, which includes a frame body 6, a die pressing plate 9, a crankshaft case 1, a crankshaft 2, a crankshaft connecting rod 3, a motor 4, and a reducer 5. A vertically connected sliding rod 19 is arranged inside the frame body 6. The die pressing plate 9 is arranged inside the frame body 6. A sliding sleeve 20 is arranged on the die pressing plate 9. The die pressing plate 9 is sleeved on the sliding rod 19 through the sliding sleeve 20 and slides up and down along the sliding rod 19. The crankshaft case 1 is fixed on the upper part of the frame body 6. The crankshaft 2 is arranged inside the crankshaft case 1. The two ends of the main journal of the crankshaft 2 are arranged in the shaft holes on both sides of the crankshaft case 1. The upper end of the crankshaft connecting rod 3 is provided with a shaft sleeve 7, and the lower end is provided with an extension rod 8. The crankshaft connecting rod 3 is sleeved on the connecting rod journal of the crankshaft 2 through the upper shaft sleeve 7, and the lower extension rod 8 is connected to the die pressing plate 9. The motor 4 is connected to one end of the crankshaft 2 through the reducer 5.

[0047] The output torque of the motor 4 drives the crankshaft 2 to rotate through the reducer 5. The crankshaft 2 drives the crankshaft connecting rod 3 to make a reciprocating motion, and then drives the die pressing plate 9 to reciprocate up and down along the sliding rod 19. A plastic compression die is arranged on the die pressing plate 9. The transmission equipment transports the raw material sheet of the seedling tray to the die pressing plate 9. The die pressing plate 9 moves towards the raw material sheet of the seedling tray to perform plastic compression molding on the raw material sheet of the seedling tray. The die pressing plate 9 moves in the opposite direction of the raw material sheet of the seedling tray to complete demolding.

[0048] As Figure 6 shown, in this embodiment, the crankshaft case 1, the motor 4, and the reducer 5 are arranged above, and the upper motor 4 drives the die pressing plate 9 to press down for plastic compression.

[0049] Embodiment 4,

[0050] As Figure 7 shown, on the basis of Embodiment 3, in this embodiment, the crankshaft case 1, the motor 4, and the reducer 5 are arranged below, then the die pressing plate 9 is driven to press up for plastic compression.

[0051] Embodiment 5,

[0052] As Figure 8As shown in the figure: The utility model provides a seedling tray compression molding die table, which includes a frame body 6, a first die pressing plate 21, a second die pressing plate 22, a crankcase 1, a crankshaft 2, a crankshaft connecting rod 3, a motor 4, and a speed reducer 5. A sliding rod 19 is vertically connected inside the frame body 6. The first die pressing plate 21 and the second die pressing plate 22 are arranged in parallel inside the frame body 6. Slide sleeves 20 are respectively provided on the first die pressing plate 21 and the second die pressing plate 22. The first die pressing plate 21 and the second die pressing plate 22 are sleeved on the sliding rod 19 through the slide sleeves 20 and slide up and down along the sliding rod 19. The crankcase 1 is fixed to the upper part of the frame body 6. The crankshaft 2 is arranged inside the crankcase 1, and both ends of the main journal of the crankshaft 2 are arranged in the shaft holes on both sides of the crankcase 1. The upper end of the crankshaft connecting rod 3 is provided with a bushing 7, and the lower end is provided with an extension rod 8. The crankshaft connecting rod 3 is sleeved on the connecting rod journal of the crankshaft 2 through the upper bushing 7, and the lower extension rod 8 is connected to the first die pressing plate 21. The motor 4 is connected to one end of the crankshaft 2 through the speed reducer 5. The first die pressing plate 21 is fixedly connected with a main transmission rod 23. The main transmission rod 23 passes through a sliding hole 24 on the second die pressing plate 22, and the free end is hinged to one end of a lever 26 through a linkage rod 25. The other end of the lever 26 is hinged to one end of a driven rod 27, and the other end of the driven rod 27 is hinged to the second die pressing plate 22. The middle part of the lever 26 is hinged to a support part fixed on the frame body 6. The hinge point between the middle part of the lever 26 and the support part is biased towards the hinge point of the lever 26 and the linkage rod 25, that is, the distance between the middle fulcrum of the linkage rod 25 and the lever 26 is greater than the distance between the middle fulcrum of the driven rod 27 and the lever 26. According to the lever principle, the input force arm is greater than the output force arm, so that the jacking force on the output end for the second die pressing plate 22 is greater.

[0053] In this embodiment, there are two groups of the main transmission rod 23, the linkage rod 25, the lever 26 and the driven rod 27, and the two groups of rotating rods are symmetrically arranged. The two groups of driven rods 27 are hinged to the middle part of the second die pressing plate 22 to ensure that the pushing and pulling forces are evenly applied and avoid tilting.

[0054] The motor 4 outputs torque to drive the crankshaft 2 to rotate through the speed reducer 5. The crankshaft 2 drives the crankshaft connecting rod 3 to make a reciprocating motion, and then drives the first die pressing plate 21 to reciprocate up and down along the sliding rod 19. When the first die pressing plate 21 moves towards the second die pressing plate 22, the first die pressing plate 21 transmits the torque to the second die pressing plate 22 through the main transmission rod 23, the linkage rod 25, the lever 26 and the driven rod 27, so that the second die pressing plate 22 moves towards the first die pressing plate 22 synchronously to complete the mold closing. On the contrary, when the first die pressing plate 21 moves away from the second die pressing plate 22, the second die pressing plate 22 moves away from the first die pressing plate 21 synchronously to complete the demolding.

[0055] Such as Figure 8 、 9As shown, in this embodiment, the crankcase 1, the motor 4, and the reducer 5 are disposed above, and the first mold pressing plate 21 is disposed above the second mold pressing plate 22.

[0056] Embodiment 6,

[0057] As Figure 10 shown, on the basis of Embodiment 5, in this embodiment, the crankcase 1, the motor 4, and the reducer 5 are disposed below, and the first mold pressing plate 21 is disposed below the second mold pressing plate 22.

[0058] Embodiment 7,

[0059] As Figure 11 shown, the present utility model further provides a seedling tray compression molding die table, which includes a frame body 6, a first mold pressing plate 21, a second mold pressing plate 22, a first crankcase 28, a second crankcase 29, a first motor 30, a first reducer 31, a second motor 32, and a second reducer 33; a sliding rod 19 connected up and down is disposed inside the frame body 6; the first mold pressing plate 21 and the second mold pressing plate 22 are disposed in parallel inside the frame body 6; sliding sleeves 20 are respectively disposed on the first mold pressing plate 21 and the second mold pressing plate 22, and the first mold pressing plate 21 and the second mold pressing plate 22 are sleeved on the sliding rod 19 through the sliding sleeves 20 and slide up and down along the sliding rod 19; the first crankcase 28 is fixed to the upper part of the frame body 6, and the second crankcase 29 is fixed to the lower part of the frame body 6; the first crankcase 28 and the second crankcase 29 have the same structure and opposite directions, and a crankshaft 2 is disposed inside the crankcase, and both ends of the main journal of the crankshaft 2 are disposed in the shaft holes on both sides of the crankcase; the crankshaft 2 is connected to a crankshaft connecting rod 3, one end of the crankshaft connecting rod 3 is provided with a bushing 7, and the other end is provided with an extension rod 8. The crankshaft connecting rod 3 is sleeved on the connecting rod journal of the crankshaft 2 through the bushing 7. The extension rod 8 in the first crankcase 28 is connected to the first mold pressing plate 21, and the extension rod 8 in the second crankcase 29 is connected to the second mold pressing plate 22; the first motor 30 is connected to one end of the crankshaft 2 in the first crankcase 28 through the first reducer 31, and the second motor 32 is connected to one end of the crankshaft 2 in the second crankcase 29 through the second reducer 33.

[0060] The torque output by the first motor 30 drives the rotation of the crankshaft 2 in the first crankcase 28 through the first reducer 31, and drives the first mold pressing plate 21 to reciprocate up and down along the sliding rod 19 through the crankshaft connecting rod 3; the torque output by the second motor 32 drives the rotation of the crankshaft 2 in the second crankcase 29 through the second reducer 33, and drives the second mold pressing plate 22 to reciprocate up and down along the sliding rod 19 through the crankshaft connecting rod 3; the first motor 30 and the second motor 32 output torque synchronously, so that the first mold pressing plate 21 and the second mold pressing plate 22 move synchronously towards each other or in opposite directions. When the first mold pressing plate 21 and the second mold pressing plate 22 move towards each other, mold closing is completed; when the first mold pressing plate 21 and the second mold pressing plate 22 move in opposite directions, demolding is completed.

[0061] Example 8

[0062] As Figures 2-5 shown, based on Embodiments 3-7, for a plastic compression die table for seedling trays provided in this embodiment, a threaded connection hole 10 is provided at the lower end of the crankshaft connecting rod 3, an external thread is provided on the upper part of the extension rod 8, and the upper part of the extension rod 8 is threadedly connected to the threaded connection hole 10 at the lower end of the crankshaft connecting rod 3; a ball head is provided at the lower end of the extension rod 8, a ball head connection seat 11 is provided on the die pressing plate 9, and the extension rod 8 is connected to the ball head connection seat 11 through the ball head. By screwing the extension rod 8, the connection depth between the extension rod 8 and the crankshaft connecting rod 3 is adjusted, the extended length of the extension rod 8 is changed, and further the height of the die pressing plate 9 of the plastic compression die table is adjusted.

[0063] A through pin shaft hole 12 is provided in the lower part of the crankshaft connecting rod 3, the pin shaft hole 12 is vertically intersected with the threaded connection hole 10 and partially communicated inside; two locking pins 13 are provided in the pin shaft hole 12, and threaded curved surfaces 14 meshing with the external thread of the extension rod 8 are provided at opposite ends of the two locking pins 13; the two locking pins 13 are meshed and clamped with the external thread of the extension rod 8 in the pin shaft hole 12; a threaded hole 15 is provided on the locking pin 13, and the locking screw 16 is inserted from one locking pin 13 and screwed and fixed with the other locking pin 13. After the extension rod 8 is threadedly connected to the threaded connection hole 10 at the lower end of the crankshaft connecting rod 3, the two locking pins 13 are respectively inserted from both ends of the pin shaft hole 12. After the two locking pins 13 are meshed and clamped with the external thread of the extension rod 8 in the pin shaft hole 12, the locking screw 16 is inserted from one locking pin 13 and screwed and tightened with the other locking pin 13 to fix the position of the extension rod 8 and prevent the extension rod 8 from loosening during the operation of the crankshaft connecting rod 3.

[0064] A top tightening screw hole 17 penetrating to the inside is provided on the side wall of the pin shaft hole 12, and the top tightening screw 18 is screwed into the top tightening screw hole 17 to top and lock the locking pin 13. After the locking pin 13 is fixed, the top tightening screw 18 is screwed into the top tightening screw hole 17 to top and lock the locking pin 13 to prevent the locking pin 13 from loosening during the operation of the crankshaft connecting rod 3.

Claims

1. A driving device for a seedling tray compression mold table, characterized in that: It includes a crankcase, a crankshaft, a crankshaft connecting rod, a motor and a reducer; the crankcase is fixed on the frame; the crankshaft is arranged in the crankcase, and the two ends of the main journal of the crankshaft are arranged in the shaft holes on both sides of the crankcase; the upper end of the crankshaft connecting rod is provided with a sleeve, and the lower end is provided with an extension rod, the crankshaft connecting rod is sleeved on the connecting rod journal of the crankshaft through the upper end sleeve, and the lower end extension rod is connected to the mold pressing plate of the compression molding table; the motor is connected to one end of the crankshaft through the reducer; The lower end of the crankshaft connecting rod is provided with a threaded connection hole, the upper part of the extension rod is provided with an external thread, and the upper part of the extension rod is threadedly connected with the threaded connection hole at the lower end of the crankshaft connecting rod; the lower end of the extension rod is provided with a ball head, the mold pressing plate is provided with a ball head connecting seat, and the extension rod is connected to the ball head connecting seat through the ball head; A through pin hole is provided at the lower part of the crankshaft connecting rod, and the pin hole intersects with the threaded connection hole vertically and is partially connected inside; two locking pins are provided in the pin hole, and threaded curved surfaces meshing with the external threads of the extension rod are provided at opposite ends of the two locking pins; the two locking pins mesh and clamp with the external threads of the extension rod in the pin hole; a threaded hole is provided on the locking pin, and a locking screw is inserted from one end of the locking pin and is threadedly fixed with the other locking pin.

2. The driving device of the seedling tray compression mold table according to claim 1, characterized in that: The side wall of the pin shaft hole is provided with a tightening screw hole which penetrates to the inside, and the tightening screw rod is screwed into the tightening screw hole and tightens the locking pin.

3. A seedling tray compression mold, characterized in that: It includes a frame, a mold platen, and the driving device as described in claim 1 or 2; the frame is provided with a sliding rod connected up and down; the mold platen is arranged in the frame, and a sliding sleeve is provided on the mold platen, and the mold platen is arranged on the sliding rod through the sliding sleeve and slides up and down along the sliding rod; the crankcase is fixed to the frame; the crankshaft is arranged in the crankcase, and the two ends of the main journal of the crankshaft are arranged in the axial holes on both sides of the crankcase; the upper end of the crankshaft connecting rod is provided with a sleeve, and the lower end is provided with an extension rod, the crankshaft connecting rod is arranged on the connecting rod journal of the crankshaft through the upper end sleeve, and the lower end extension rod is connected to the mold platen; the motor is connected to one end of the crankshaft through a reducer.

4. A seedling tray compression mold, characterized in that: It includes a frame, a first mold platen, a second mold platen, and the driving device according to claim 1 or 2; the frame is provided with a sliding rod connected up and down; the first mold platen and the second mold platen are arranged in parallel in the frame; the first mold platen and the second mold platen are respectively provided with sliding sleeves, and the first mold platen and the second mold platen are arranged on the sliding rod through the sliding sleeves and slide up and down along the sliding rod; the crankcase is fixed on the frame; the crankshaft is arranged in the crankcase, and the two ends of the main journal of the crankshaft are arranged in the shaft holes on both sides of the crankcase; the crankshaft connecting rod A shaft sleeve is provided at the upper end, and an extension rod is provided at the lower end. The crankshaft connecting rod is sleeved on the connecting rod journal of the crankshaft through the upper end shaft sleeve, and the lower end extension rod is connected to the first mold platen; the motor is connected to one end of the crankshaft through a reducer; the first mold platen is fixedly connected with a main transmission rod, the transmission rod passes through a sliding hole on the second mold platen, and the free end is hinged to one end of the lever through a linkage rod, the other end of the lever is hinged to one end of the driven rod, and the other end of the driven rod is hinged to the second mold platen; the middle part of the lever is hinged to the supporting part fixed on the frame.

5. A seedling tray compression mold, characterized in that: It includes a frame, a first mold platen, a second mold platen, and two groups of driving devices according to claim 1 or 2, wherein one group of driving devices includes a first crankcase, a first motor, and a first reducer, and the other group of driving devices includes a second crankcase, a second motor, and a second reducer; a sliding rod connected up and down is arranged in the frame; the first mold platen and the second mold platen are arranged in parallel in the frame; the first mold platen and the second mold platen are respectively provided with sliding sleeves, and the first mold platen and the second mold platen are arranged on the sliding rod through the sliding sleeves and slide up and down along the sliding rod; the first crankcase is fixed to the upper part of the frame, and the second crankcase is fixed to the upper part of the frame. Fixed at the lower part of the frame; the first crankcase and the second crankcase have the same structure but opposite directions, a crankshaft is arranged in the crankcase, and the two ends of the main journal of the crankshaft are arranged in the axial holes on both sides of the crankcase; the crankshaft is connected to the crankshaft connecting rod, one end of the crankshaft connecting rod is provided with a sleeve, and the other end is provided with an extension rod, the crankshaft connecting rod is arranged on the connecting rod journal of the crankshaft through the sleeve, the extension rod in the first crankcase is connected to the first mold pressure plate, and the extension rod in the second crankcase is connected to the second mold pressure plate; the first motor is connected to one end of the crankshaft in the first crankcase through the first reducer, and the second motor is connected to one end of the crankshaft in the second crankcase through the second reducer.

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